package com.atcd.mq.mq_yanchimq.config;

import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.BindingBuilder;
import org.springframework.amqp.core.CustomExchange;
import org.springframework.amqp.core.Queue;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.HashMap;
import java.util.Map;

//基于插件的延迟队列的声明
@Configuration
public class DelayedQueueConfig {
public static final String DELAYED_QUEUE_NAME = "delayed.queue";
public static final String DELAYED_EXCHANGE_NAME = "delayed.exchange";
public static final String DELAYED_ROUTING_KEY = "delayed.routingkey";
@Bean
public Queue delayedQueue() {
return new Queue(DELAYED_QUEUE_NAME);
}
// 自定义交换机 我们在这里定义的是一个延迟交换机


@Bean
public CustomExchange delayedExchange() {
Map<String, Object> args = new HashMap<>();
// 自定义交换机的类型
args.put("x-delayed-type", "direct");
return new CustomExchange(DELAYED_EXCHANGE_NAME, "x-delayed-message", true, false,
args);
}



@Bean
public Binding bindingDelayedQueue(@Qualifier("delayedQueue") Queue queue,
                                   @Qualifier("delayedExchange")  CustomExchange
delayedExchange) {
return
BindingBuilder.bind(queue).to(delayedExchange).with(DELAYED_ROUTING_KEY).noargs();
}
}